0 the action of saying officially that political or military information is no longer secret: --
The ministry maintains that the declassification of the site was done through the legal procedures adopted by the governmental institutions.
This only came to light after declassification of a secret memorandum in 1994.
At this point the work was still classified, but a declassification effort was underway.
It does not produce a declassified product by itself, but may be the first step in the declassification process.
In practice this means that declassification of documents are fixed at different periods based on type of material and date of production.
Any other schemes, including the declassification of trunk roads or the scheme which has now been abandoned, obviously are on the table in a theoretical sense.
There is no question of declassification there because the act of classification is, so to speak, the culmination of the process in those three clauses.
We therefore have no problem whatsoever in arguing in favour of declassification.